Posiflex CR-3103 - Manual (Page 6)

4
CONNECTOR PIN-OUT
(See Fig 4)
P1 (DB25M) - Parallel Input From Computer
1 - -Strobe
2 - Data 0
.
.
9 - Data 7
10 - -ACK
11 - Busy
12 - Paper End
13 - Select
14 - Auto Feed
15 - Error
16 - -Initialize Printer
17 - -Select Input
18 - NC
19 through 25 - Ground
P2 (DB25F) - Parallel Output to Printer
1 - -Strobe
2 - Data 0
.
.
9 - Data 7
10 - -ACK
11 - Busy
12 - Paper End
13 - Select
14 - Auto Feed
15 - Error
16 - -Initialize Printer
17 - -Select Input
18,21,25 - Printer-Connected detection
19,20,22,23,24 - Ground